diff --git a/internal/handler/application.go b/internal/handler/application.go
index ae8534f..2b76332 100644
--- a/internal/handler/application.go
+++ b/internal/handler/application.go
@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"strconv"
-	"strings"
 
 	"gcy_hpc_server/internal/model"
 	"gcy_hpc_server/internal/server"
@@ -139,7 +138,8 @@ func (h *ApplicationHandler) DeleteApplication(c *gin.Context) {
 	server.OK(c, gin.H{"message": "application deleted"})
 }
 
-func (h *ApplicationHandler) SubmitApplication(c *gin.Context) {
+// [已禁用] 前端已全部迁移到 POST /tasks 接口，此端点不再使用。
+/* func (h *ApplicationHandler) SubmitApplication(c *gin.Context) {
 	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
 	if err != nil {
 		h.logger.Warn("invalid application id for submit", zap.String("id", c.Param("id")))
@@ -171,4 +171,4 @@ func (h *ApplicationHandler) SubmitApplication(c *gin.Context) {
 	}
 	h.logger.Info("application submitted", zap.Int64("id", id), zap.Int32("job_id", resp.JobID))
 	server.Created(c, resp)
-}
+} */
diff --git a/internal/handler/application_test.go b/internal/handler/application_test.go
index dbc7fa1..ea52a0c 100644
--- a/internal/handler/application_test.go
+++ b/internal/handler/application_test.go
@@ -46,7 +46,7 @@ func setupApplicationRouter(h *ApplicationHandler) *gin.Engine {
 	apps.GET("/:id", h.GetApplication)
 	apps.PUT("/:id", h.UpdateApplication)
 	apps.DELETE("/:id", h.DeleteApplication)
-	apps.POST("/:id/submit", h.SubmitApplication)
+	// apps.POST("/:id/submit", h.SubmitApplication) // [已禁用] 已被 POST /tasks 取代
 	return r
 }
 
@@ -344,6 +344,8 @@ func TestDeleteApplication_Success(t *testing.T) {
 
 // ---- Submit Tests ----
 
+// [已禁用] 测试的是旧的直接提交路径，该路径已被注释掉
+/*
 func TestSubmitApplication_Success(t *testing.T) {
 	slurmHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "application/json")
@@ -378,7 +380,10 @@ func TestSubmitApplication_Success(t *testing.T) {
 		t.Fatalf("expected 201, got %d: %s", w2.Code, w2.Body.String())
 	}
 }
+*/
 
+// [已禁用] 测试的是旧的直接提交路径，该路径已被注释掉
+/*
 func TestSubmitApplication_AppNotFound(t *testing.T) {
 	slurmHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "application/json")
@@ -398,7 +403,10 @@ func TestSubmitApplication_AppNotFound(t *testing.T) {
 		t.Fatalf("expected 404, got %d: %s", w.Code, w.Body.String())
 	}
 }
+*/
 
+// [已禁用] 测试的是旧的直接提交路径，该路径已被注释掉
+/*
 func TestSubmitApplication_ValidationFail(t *testing.T) {
 	slurmHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "application/json")
@@ -430,6 +438,7 @@ func TestSubmitApplication_ValidationFail(t *testing.T) {
 		t.Fatalf("expected 400, got %d: %s", w2.Code, w2.Body.String())
 	}
 }
+*/
 
 // ---- Logging Tests ----
 
@@ -529,6 +538,8 @@ func TestApplicationLogging_DeleteSuccess_LogsInfoWithID(t *testing.T) {
 	}
 }
 
+// [已禁用] 测试的是旧的直接提交路径，该路径已被注释掉
+/*
 func TestApplicationLogging_SubmitSuccess_LogsInfoWithID(t *testing.T) {
 	core, recorded := observer.New(zapcore.DebugLevel)
 	l := zap.New(core)
@@ -581,6 +592,7 @@ func TestApplicationLogging_SubmitSuccess_LogsInfoWithID(t *testing.T) {
 		t.Fatal("expected 'application submitted' log message")
 	}
 }
+*/
 
 func TestApplicationLogging_CreateBadRequest_LogsWarn(t *testing.T) {
 	h, _, recorded := setupApplicationHandlerWithObserver()
diff --git a/internal/server/server.go b/internal/server/server.go
index e74c119..86141ac 100644
--- a/internal/server/server.go
+++ b/internal/server/server.go
@@ -31,7 +31,7 @@ type ApplicationHandler interface {
 	GetApplication(c *gin.Context)
 	UpdateApplication(c *gin.Context)
 	DeleteApplication(c *gin.Context)
-	SubmitApplication(c *gin.Context)
+	// SubmitApplication(c *gin.Context) // [已禁用] 已被 POST /tasks 取代
 }
 
 type UploadHandler interface {
@@ -93,7 +93,7 @@ func NewRouter(jobH JobHandler, clusterH ClusterHandler, appH ApplicationHandler
 	apps.GET("/:id", appH.GetApplication)
 	apps.PUT("/:id", appH.UpdateApplication)
 	apps.DELETE("/:id", appH.DeleteApplication)
-	apps.POST("/:id/submit", appH.SubmitApplication)
+	// apps.POST("/:id/submit", appH.SubmitApplication) // [已禁用] 已被 POST /tasks 取代
 
 	files := v1.Group("/files")
 
@@ -164,7 +164,7 @@ func registerPlaceholderRoutes(v1 *gin.RouterGroup) {
 	apps.GET("/:id", notImplemented)
 	apps.PUT("/:id", notImplemented)
 	apps.DELETE("/:id", notImplemented)
-	apps.POST("/:id/submit", notImplemented)
+	// apps.POST("/:id/submit", notImplemented) // [已禁用] 已被 POST /tasks 取代
 
 	files := v1.Group("/files")
 
diff --git a/internal/server/server_test.go b/internal/server/server_test.go
index 4cc5787..9aa51ec 100644
--- a/internal/server/server_test.go
+++ b/internal/server/server_test.go
@@ -32,7 +32,7 @@ func TestAllRoutesRegistered(t *testing.T) {
 		{"GET", "/api/v1/applications/:id"},
 		{"PUT", "/api/v1/applications/:id"},
 		{"DELETE", "/api/v1/applications/:id"},
-		{"POST", "/api/v1/applications/:id/submit"},
+		// {"POST", "/api/v1/applications/:id/submit"}, // [已禁用] 已被 POST /tasks 取代
 	}
 
 	routeMap := map[string]bool{}